Natural gas pipeline pressure relief device

Abstract

The utility model discloses a natural gas pipeline pressure relief device which comprises a natural gas pipeline body, the top of the natural gas pipeline body is fixedly communicated with a pressure relief pipeline, an adjusting assembly is arranged in the pressure relief pipeline, a gas storage box is fixedly installed on one side of the natural gas pipeline body, and a recycling assembly is arranged on the gas storage box. The utility model relates to the technical field of natural gas safety. The rotating handle is rotated to drive the isosceles trapezoid sliding block to move towards one side, due to the fact that the two sides of the isosceles trapezoid sliding block are arranged in an inclined mode, through the reset function of the second spring, one end of the T-shaped inserting rod is pushed to be away from the inserting groove, and then the sliding rod at the bottom of the bearing plate is pulled to move to the needed position. Then a rotating handle is rotated to drive an isosceles trapezoid sliding block to move towards the other side, meanwhile, the isosceles trapezoid sliding block is obliquely arranged, so that a T-shaped inserting rod on one side of a rolling wheel is pushed to be inserted into an inserting groove, pressure relief is adjusted, and the natural gas pipeline pressure relief device is suitable for natural gas pipelines made of different materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas safety technical field, concretely is a kind of natural gas pipeline pressure relief device. BACKGROUND

[0002] Natural gas main component alkane, wherein methane accounts for the majority, and there are small amount of ethane, propane and butane, in addition, hydrogen sulfide, carbon dioxide, nitrogen and water gas and small amount carbon monoxide and trace amount of rare gas, such as helium and argon etc. Currently, natural gas is mainly transmitted through pipeline, and in the case where pipeline is blocked or valve is damaged, the pressure in the pipeline will increase, which may cause pipeline rupture and even explosion, so it is necessary to relieve pressure when the pressure of natural gas pipeline is too large.

[0003] However, the pressure borne by natural gas pipelines of different materials is different when they are used, and the existing natural gas pipeline pressure relief device cannot adjust the pressure relief of natural gas pipelines of different materials, so the practicability is poor. Therefore, the utility model provides a natural gas pipeline pressure relief device, which solves the above problems by limiting structures such as bearing plate and piston plate. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a natural gas pipeline pressure relief device, which solves the above problems.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a natural gas pipeline pressure relief device, comprising a natural gas pipeline body, a pressure relief pipeline is fixedly connected to the top of the natural gas pipeline body, an adjusting assembly is arranged in the pressure relief pipeline, a gas storage box is fixedly installed on one side of the natural gas pipeline body, and a recovery assembly is arranged on the gas storage box.

[0006] Preferably, the adjusting assembly comprises a blocking plate, a spring one and a piston plate, the blocking plate is located inside the pressure relief pipeline, the spring one is fixedly installed at the bottom of the blocking plate, the piston plate is fixedly installed at the bottom end of the spring one, the sliding rods are fixedly installed on the top end of the blocking plate in a symmetrical manner, the bearing plate is movably penetrated into the top of the pressure relief pipeline from the top end of the two sliding rods and fixedly installed, the support vertical plates are fixedly installed on the top of the pressure relief pipeline in a symmetrical manner, a plurality of insertion slots are uniformly formed in the side walls of the two support vertical plates, the fixed plates are fixedly installed on the top of the bearing plate in a symmetrical manner, the L-shaped connecting plate is fixedly installed on one side of the bearing plate, the threaded rod is threaded penetrated in the L-shaped connecting plate, the rotating handle is fixedly installed at one end of the threaded rod, the isosceles trapezoidal slide block is rotatably connected to the other end of the threaded rod, the T-shaped insertion rods are movably penetrated in the two fixed plates, the rollers are fixedly installed at one end of the two T-shaped insertion rods, the spring two is sleeved on the outer surface of the T-shaped insertion rod, and the spring two is fixedly installed on the side wall of the fixed plate and the side wall of the T-shaped insertion rod.

[0007] Preferably, the recovery assembly comprises a booster pump fixedly installed on one side of the top of the gas storage box, the output end of the booster pump is fixedly communicated with a connecting pipe one, one end of the connecting pipe one is fixedly communicated with the inside of the connecting pipe one, the top of the gas storage box is fixedly communicated with a connecting pipe two, the top end of the connecting pipe two is fixedly communicated with the inside of the pressure relief pipeline, one side of the gas storage box is fixedly communicated with a connecting pipe three, one end of the connecting pipe three is fixedly communicated with the inside of the natural gas pipeline body, and the connecting pipe three is provided with a one-way valve.

[0008] Preferably, the T-shaped insertion rod one end matches with the insertion slot, and the T-shaped insertion rod one end and the insertion slot one end are on the same horizontal plane.

[0009] Preferably, the plugging plate and the piston plate match with the inner side wall of the pressure relief pipeline.

[0010] Preferably, the isosceles trapezoidal slider bottom is slidably connected to the top of the bearing plate through the clamping block and the clamping groove.

[0011] Preferably, the bottom end of the plugging plate is located at the top of one end of the connecting pipe two.

[0012] Beneficial effects

[0013] Compared with the prior art, the natural gas pipeline pressure relief device has the following advantages

[0014] Beneficial effects:

[0015] (1) The utility model discloses a kind of natural gas pipeline pressure relief devices, which is characterized by the following

[0016] (2) In the utility model, when the pressure in the natural gas pipeline body recovers to normal, the gas storage box is pressurized by the booster pump, the natural gas in the gas storage box enters the connecting pipe three by pressure, and then enters the natural gas pipeline body through the connecting pipe three, so that the discharged natural gas is recovered, and the waste of natural gas is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the external structure perspective view of the utility model;

[0018] Figure 2It is the internal structure left view of the utility model;

[0019] Figure 3 It is the adjusting assembly schematic view of the utility model;

[0020] Figure 4 It is the structure schematic view of A in the adjusting assembly of the utility model;

[0021] Figure 5 It is the recycling assembly schematic view of the utility model.

[0022] In the figure, 1, natural gas pipeline body;2, pressure relief pipeline;3, gas storage box;100, adjusting assembly;101, plugging plate;102, spring one;103, piston plate;104, sliding rod;105, support vertical plate;106, slot;107, bearing plate;108, fixed plate;109, T-shaped plug rod;110, spring two;111, roller;112, threaded rod;113, isosceles trapezoidal slide;114, L-shaped connecting plate;115, rotating handle;200, recycling assembly;201, booster pump;202, connecting pipe one;203, connecting pipe two;204, connecting pipe three;205, one-way valve. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment one:

[0025] Please refer to Figures 1-5 A natural gas pipeline pressure relief device, including natural gas pipeline body 1, natural gas pipeline body 1 top fixed communication has pressure relief pipeline 2, pressure relief pipeline 2 in being provided with adjusting assembly 100, natural gas pipeline body 1 one side is fixedly installed with gas storage box 3, and the gas storage box 3 is used to store the natural gas of pressure relief, and the gas storage box 3 is provided with recycling assembly 200;

[0026] The adjusting assembly 100 comprises a blocking plate 101, a spring 102 and a piston plate 103, the blocking plate 101 is located in the pressure relief pipeline 2, the bottom of the blocking plate 101 is fixedly installed with the spring 102, the bottom of the spring 102 is fixedly installed with the piston plate 103, the top of the blocking plate 101 is symmetrically fixedly installed with sliding rods 104, the top of the two sliding rods 104 is movably penetrated to the top of the pressure relief pipeline 2 and is fixedly installed with a bearing plate 107, the top of the pressure relief pipeline 2 is symmetrically fixedly installed with support vertical plates 105, the side walls of the two support vertical plates 105 are uniformly provided with a plurality of slot holes 106, the top of the bearing plate 107 is symmetrically fixedly installed with fixed plates 108, the side of the bearing plate 107 is fixedly installed with an L-shaped connecting plate 114, the L-shaped connecting plate 114 is threadedly penetrated with a threaded rod 112, one end of the threaded rod 112 is fixedly installed with a rotating handle 115, the other end of the threaded rod 112 is rotatably connected with an isosceles trapezoidal sliding block 113, the two fixed plates 108 are movably penetrated with T-shaped insertion rods 109, one end of the two T-shaped insertion rods 109 is fixedly installed with a roller 111, the outer surface of the T-shaped insertion rod 109 is sleeved with a spring 110, and the two ends of the spring 110 are fixedly installed on the side walls of the fixed plate 108 and the T-shaped insertion rod 109;

[0027] In detail, the reset action of the spring 110 can drive one end of the T-shaped insertion rod 109 to be inserted into the slot hole 106 all the time, a pressure expression ruler can be arranged at one side of the support vertical plate 105 at each slot hole 106, for directly observing the pressure relief pressure, and a protective cover can be sleeved on the top of the pressure relief pipeline 2, for protecting the adjusting assembly 100;

[0028] One end of the T-shaped insertion rod 109 is matched with the slot hole 106, one end of the T-shaped insertion rod 109 and one end of the slot hole 106 are on the same horizontal plane, and the other end of the T-shaped insertion rod 109 is attached to the top of the bearing plate 107;

[0029] The blocking plate 101 and the piston plate 103 are matched with the inner side walls of the pressure relief pipeline 2;

[0030] The isosceles trapezoidal sliding block 113 is slidably connected to the top of the bearing plate 107 through the clamping block and the clamping groove, so that the isosceles trapezoidal sliding block 113 can stably move and prevent uncontrollable deviation.

[0031] Embodiment two:

[0032] Please refer to Figures 1-5The embodiment provides a technical scheme based on the embodiment one: the recovery assembly 200 comprises a booster pump 201 fixedly installed on one side of the top of the gas storage box 3, the booster pump 201 pressurizes the inner cavity of the gas storage box 3 through the connecting pipe one 202, so that the natural gas is re-injected into the inside of the natural gas pipeline body 1, the output end of the booster pump 201 is fixedly communicated with the connecting pipe one 202, one end of the connecting pipe one 202 is fixedly communicated with the inside of the connecting pipe one 202, the top of the gas storage box 3 is fixedly communicated with the connecting pipe two 203, the top end of the connecting pipe two 203 is fixedly communicated with the inside of the pressure relief pipeline 2, one side of the gas storage box 3 is fixedly communicated with the connecting pipe three 204, one end of the connecting pipe three 204 is fixedly communicated with the inside of the natural gas pipeline body 1, and the connecting pipe three 204 is provided with the one-way valve 205;

[0033] The bottom end of the plugging plate 101 is located on the top of one end of the connecting pipe two 203.

[0034] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0035] In work, first, the pressure relief force is adjusted according to the material of the natural gas pipeline body 1, the isosceles trapezoidal slide block 113 is driven to move to one side by rotating the rotating handle 115, because the two sides of the isosceles trapezoidal slide block 113 are inclined, and the reset action of the spring two 110 is used, so that the one end of the T-shaped insertion rod 109 is pushed away from the insertion slot 106, then the sliding rod 104 at the bottom of the bearing plate 107 is pulled to move to the required position, then the isosceles trapezoidal slide block 113 is driven to move to the other side by rotating the rotating handle 115, and the T-shaped insertion rod 109 on one side of the roller 111 is inserted into the insertion slot 106, so that the pressure relief force is adjusted, when the internal pressure of the natural gas pipeline body 1 is too large, the natural gas in the natural gas pipeline body 1 is pushed by the pressure to move the piston plate 103, the top end of the piston plate 103 is elastically upwardly slid by the spring one 102, so that the natural gas enters the gas storage box 3 through the connecting pipe two 203, when the pressure in the natural gas pipeline body 1 returns to normal, the booster pump 201 is started to pressurize the gas storage box 3, the natural gas in the gas storage box 3 enters the connecting pipe three 204 through the pressure, and then enters the natural gas pipeline body 1 through the connecting pipe three 204, so that the natural gas discharged by pressure relief is re-injected into the natural gas pipeline body 1.

[0036] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A natural gas pipeline pressure relief device comprising a natural gas pipeline body (1), characterized in that: The natural gas pipeline body (1) top fixed communication has pressure relief pipeline (2), be provided with adjusting assembly (100) in the pressure relief pipeline (2), the natural gas pipeline body (1) one side fixed mounting has gas storage box (3), be provided with recovery assembly (200) on the gas storage box (3).

2. A natural gas pipeline pressure relief device according to claim 1, wherein: The adjusting assembly (100) includes a sealing plate (101), a spring (102) and a piston plate (103), the sealing plate (101) is located in the pressure relief pipeline (2), the sealing plate (101) bottom fixed mounting has spring (102), the spring (102) bottom fixed mounting has piston plate (103), the sealing plate (101) top end fixed mounting has sliding rod (104), two sliding rods (104) top end movable through to the top of pressure relief pipeline (2) and fixed mounting has bearing plate (107), the top of pressure relief pipeline (2) symmetry fixed mounting has support vertical plate (105), two support vertical plate (105) side wall evenly has several insertion slots (106), the bearing plate (107) top symmetry fixed mounting has fixed plate (108), the bearing plate (107) one side fixed mounting has L type connecting plate (114), the L type connecting plate (114) is screwed through screw rod (112), the screw rod (112) one end fixed mounting has rotating handle (115), the screw rod (112) other end rotationally connected with isosceles trapezoidal slide block (113), two fixed plates (108) movable through T type insertion rod (109), two T type insertion rods (109) one end fixed mounting has idler (111), the T type insertion rod (109) outer surface is equipped with spring (110), the spring (110) both ends are fixedly installed on the side wall of fixed plate (108) and the side wall of T type insertion rod (109).

3. A natural gas pipeline pressure relief device according to claim 1, wherein: The recovery assembly (200) includes a booster pump (201) fixedly installed on one side of the top of the gas storage box (3), the output end of the booster pump (201) is fixedly communicated with a connecting pipe (202), one end of the connecting pipe (202) is fixedly communicated with the inside of the connecting pipe (202), the top of the gas storage box (3) is fixedly communicated with a connecting pipe (203), the top end of the connecting pipe (203) is fixedly communicated with the inside of the pressure relief pipeline (2), one side of the gas storage box (3) is fixedly communicated with a connecting pipe (204), one end of the connecting pipe (204) is fixedly communicated with the inside of the natural gas pipeline body (1), and the connecting pipe (204) is provided with a one-way valve (205).

4. A natural gas pipeline pressure relief device according to claim 2, wherein: The T type insertion rod (109) one end with insertion slot (106) match, the T type insertion rod (109) one end with insertion slot (106) one end in the same horizontal plane, the T type insertion rod (109) other end bottom and bearing plate (107) top fit.

5. A natural gas pipeline pressure relief device according to claim 2, wherein: The sealing plate (101) and piston plate (103) match with the inner side wall of the pressure relief pipeline (2).

6. A natural gas pipeline pressure relief device according to claim 2, wherein: The bottom of the isosceles trapezoidal slide block (113) is slidably connected to the top of the bearing plate (107) through the clamping block and the clamping groove.

7. A natural gas pipeline pressure relief device according to claim 2, wherein: The bottom end of the blocking plate (101) is located at the top of one end of the second connecting pipe (203).

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